Request: combining 2 rage/reaction faces into something new

I'm seeking to convey the overwhelming feeling of relief+joy that comes immediately following feelings of pessimism about something unpleasant.

Example to help visualize: you have to take a dook at a disgusting bathroom at work, and wait until it is unavoidable. You then enter the stall to discover that the toilet has been very recently sanitized, smells of beautiful pine, and it is clear that no one has touched it since.